NASA and the U.S. Geological Survey (USGS) have started work on Landsat 9, planned to launch in 2023, which will extend the Earth-observing program’s record of land images to half a century.
April 16, 2015
from NASA http://ift.tt/1Hxj9Qk
via IFTTT
April 16, 2015
from NASA http://ift.tt/1Hxj9Qk
via IFTTT
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